Progressive lenses are multifocal lenses that look exactly like single vision lenses. These lenses correct the vision gradually and seamlessly from top to bottom at all distances. As a result, one does not notice a change in the focal position of the lens. So there is no need to change glasses when doing things like driving (far vision), looking at the computer (middle vision) and studying (close vision).
Progressive lenses have three parts. Unlike bifocal and trifocal lenses, there is no visible line that separates the parts. With progressive lenses, you look through the top section of the lens to see things that are far away. The middle section of the lenses clarify objects in the middle ground. The bottom section helps you see objects that are close up.
Progressive lenses are recommended for people with both astigmatism and myopia or hyperopia. People over the age of forty who suffer from presbyopia should also use these types of lenses instead of bifocals or trifocals, but if you only have myopia or hyperopia, the use of progressive lenses is not highly recommended.
Like all types of lenses, progressive lenses have their own pros and cons:
Pros:
· It provides clear vision at all distances (rather than at just two or three distinct viewing distances)
· It eliminates bothersome "image jump" caused by bifocals and trifocals. This is where objects abruptly change in clarity and apparent position when your eyes move across the visible lines in these lenses. This sudden change causes blurred vision, dizziness, and nausea. With progressive lenses, image jump does not occur.
· Because there are no visible "bifocal lines" in progressive lenses, they make you look younger, comparing to bifocals or trifocals (this reason alone may be why more people today wear progressive lenses than the number of people who wear bifocals and trifocals combined.)
· You do not need to purchase multiple pairs of glasses
· It helps you save money since you only need one pair
Cons:
· You have to look in a specific part of the lens to see clearly at different distances
· It can take time getting used to
As mentioned earlier in the article, Blue Light can be useful or harmful, and it is classified in the range of visible lights. Our eyes receive a lot of blue light from our surroundings every day. Sunlight, light reflected from LCD screens, tablets, mobile screens, etc. All these devices have blue light rays and our eyes can be damaged if they are exposed to too much blue light, especially at night. Nowadays, special glasses are prescribed to protect the eyes from blue light, which ensures the health of the eyes against these rays.
Hotta has created a new and modern world in front of your eyes by making progressive blue control lenses. These lenses are hydrophobic and protect the eyes from ultraviolet rays. The special electromagnetic resistance protects the eye from these rays. Hotta lenses are very light and provide very clear vision with their anti-fog and anti-dust properties.
